App Dev Worksheet: Part 2 Test

App development lesson 16: Designing apps: Part 2 test · Set 474 · 40 questions

Developer's tip (Think like the user): First decide which topic the question is about. Use that lesson’s rule: 48 px buttons, 16 px text, the screen stack, the flow order. For code, count positions from 0.

1. 1.🖼️ In this wireframe (top to bottom), which part is at the very bottom?
   [ top bar ]
   [ Save button ]
   [ menu icon ]
   [ filter buttons ] (a) Save button (b) menu icon (c) top bar (d) filter buttons
2. 2.🖼️ In this wireframe (top to bottom), what is right below the menu icon?
   [ filter buttons ]
   [ top bar ]
   [ menu icon ]
   [ Add button ]
   [ Save button ]
   [ search box ] (a) search box (b) Add button (c) filter buttons (d) Save button
3. 3.🔢 In a photo-post flow, which comes first: “take the photo” or “open the camera screen”? (a) open the camera screen (b) take the photo
4. 4.🔘 Our rule: buttons are at least 48 px tall. Which button is too small?
   Help button: 72 px tall
   Done button: 60 px tall
   Next button: 28 px tall (a) Help (b) Next (c) Done
5. 5.🧭 Which part of navigation shows 3 to 5 icons? (a) a tab bar (b) a menu button (c) the back button
6. 6.🧭 Which part of navigation sits at the bottom? (a) the back button (b) a tab bar (c) a menu button
7. 7.💾 Saving data in the cloud lets you ___. (a) never need a password (b) use it on any device (c) shrink the app (d) skip the internet
8. 8.🔀 A screen with no way forward or back is called a ___. (a) tab bar (b) shortcut (c) home screen (d) dead end
9. 9.True or false: the button colours is about UI (the look). (a) True (b) False
10. 10.Which of these makes the app harder to use? (a) strong colour contrast (b) labels on every icon (c) text that can grow (d) colour as the only clue
11. 11.💾 What number does this code show?
    let songs = ["Ocean", "Rain", "Kites"];
    songs.push("Sunrise");
    songs.push("Stars");
    show(songs.length);
12. 12.🔢 In a photo-post flow, which comes first: “write a caption” or “post the photo”? (a) write a caption (b) post the photo
13. 13.👆 Two designs for the same task (each arrow is one tap). Which needs FEWER taps?
    Design A: Home → Menu → Search
    Design B: Home → Results → Menu → Offers (a) Design A (b) Design B
14. 14.🔍 Which is the odd one out? (a) the button colours (b) the screen layout (c) the font size (d) how users feel after
15. 15.🔘 Is this good or poor button design: strong colour contrast? (a) poor design (b) good design
16. 16.🌗 Is yellow on white easy or hard to read on a button? (a) easy to read (b) hard to read
17. 17.🔢 In a quiz-app flow, which comes FIRST? (a) read a question (b) pick an answer (c) tap “Start quiz” (d) see if it is right
18. 18.🖼️ In this wireframe (top to bottom), what is right above the big picture?
    [ list of items ]
    [ top bar ]
    [ Add button ]
    [ Save button ]
    [ menu icon ]
    [ big picture ] (a) Save button (b) top bar (c) menu icon (d) Add button
19. 19.🔀 In a good flow, each screen should lead to ___. (a) the same screen (b) a random page (c) a dead end (d) a clear next step
20. 20.🔢 In a photo-post flow, which comes first: “take the photo” or “write a caption”? (a) take the photo (b) write a caption
21. 21.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. open “Friend list”
    2. tap Back
    3. tap the Feed tab
    4. open “Video”
    5. open “Friend list”
    Which screen are you on now? (a) Video (b) Feed (c) Friend list (d) Chat
22. 22.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Body text: 14 px
    Hint: 17 px
    Footer: 13 px
    Label: 19 px
    Title: 13 px
23. 23.True or false: a wireframe shows where things go. (a) False (b) True
24. 24.True or false: icons with no meaning is poor button design. (a) True (b) False
25. 25.🔢 In a food-order flow, which comes first: “check the cart” or “open the menu”? (a) check the cart (b) open the menu
26. 26.🖼️ In this wireframe (top to bottom), what is right above the filter buttons?
    [ search box ]
    [ tab bar ]
    [ list of items ]
    [ filter buttons ]
    [ menu icon ] (a) search box (b) menu icon (c) list of items (d) tab bar
27. 27.True or false: the sound on/off setting fits saving on the phone. (a) False (b) True
28. 28.💾 pop() takes off the last item. What does this code show?
    let notes = ["Sports", "Science", "Music", "Hindi", "Art"];
    notes.pop();
    show(notes[notes.length - 1]); (a) Hindi (b) Sports (c) Science (d) Music
29. 29.True or false: a final design is a quick sketch. (a) True (b) False
30. 30.Which colour pair is hard to read? (a) white on black (b) white on dark green (c) yellow on white (d) dark blue on white
31. 31.🖼️ How many parts (boxes) does this wireframe have?
    [ big picture ]
    [ menu icon ]
    [ search box ]
    [ filter buttons ]
    [ tab bar ]
32. 32.🔘 Our rule: buttons are at least 48 px tall. Which button is too small?
    Send button: 68 px tall
    Start button: 72 px tall
    Save button: 32 px tall (a) Start (b) Save (c) Send
33. 33.Which of these is about UI (the look)? (a) how easy sign-up is (b) how many taps it takes (c) the icon shapes (d) how users feel after
34. 34.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. tap the Lessons tab
    2. tap the Quiz tab
    3. open “Map”
    4. tap Back
    5. open “Friend list”
    How many times must you tap Back to reach the main screen of this tab?
35. 35.🔘 Our rule: buttons are at least 48 px tall. Which button is too small?
    Save button: 48 px tall
    Next button: 72 px tall
    Done button: 24 px tall (a) Done (b) Save (c) Next
36. 36.Which of these is about UI (the look)? (a) how easy sign-up is (b) the button colours (c) whether users get lost (d) how users feel after
37. 37.✏️ Is this true of a wireframe or of a final design: is a quick sketch? (a) a wireframe (b) a final design
38. 38.👆 Two designs for the same task (each arrow is one tap). How many taps does Design B need?
    Design A: Home → Address → Offers → Pens → Item → Confirm → Cart
    Design B: Home → Item → Confirm
39. 39.🔘 Our rule: buttons are at least 48 px tall. How many of these buttons follow the rule?
    Save button: 56 px tall
    Back button: 36 px tall
    Help button: 32 px tall
    Next button: 60 px tall
40. 40.💾 What number does this code show?
    let songs = ["Ocean", "Sunrise", "Kites"];
    songs.push("Stars");
    songs.push("Monsoon");
    show(songs.length);

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